He is a Distinguished Professor[2] at the Department of Communication Sciences and Disorders at the University of Iowa and has written several books relating to the human voice.
His early career positions included associate professor in the Department of Physics at the King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia, assistant professor for the Sensory Communication Research Laboratory at Gallaudet College from 1976–1979, lecturer in physics and electrical engineering at California State Polytechnic University, physics instructor at Pomona College from 1973–1974, and Brigham Young University from 1972–1973.
Before accepting a position to work as a research engineer at the Boeing Company of Seattle from 1968–1969, he worked at the National Reactor Test Station (1965–1966) and as a research engineer at North American Aviation in Tulsa, Oklahoma, Titze began his career as a summer research engineer for Argonne National Laboratory in Arco, Idaho in 1963.[where?
Museum Between the years of 1979–1981, Titze developed a new course entitled Principles of Voice Production, which was taught jointly in the School of Music.
During the 1980s he developed various university courses that included acoustics, biomechanics of speech, experimental phonetics, digital signal processing, voice therapy and vocal pedagogy, all of which culminated in him coining the phrase 'vocology', which he then proposed as a discipline parallel to audiology.